Form 4 filed by Kastelein Johannes Jacob Pieter
Kastelein Johannes Jacob Pieter filed this Form 4 on NewAmsterdam Pharma Co N.V. with 3 transaction rows and 1 holding row, accepted by EDGAR 2026-10-02 20:30:31 UTC.
- Accession
- 0001193125-26-412431
- Filer
- CIK 2000389
- Filed
- 2026-10-02
- Accepted by EDGAR
- Ingested
- Source
- EDGAR daily index
Issuer and reporting owners
Issuer: NewAmsterdam Pharma Co N.V. (CIK 1936258)
- Kastelein Johannes Jacob Pieter director, officer (Chief Scientific Officer)
Rows
| Security | Date | Code | Shares | Price | Owned after | Ownership |
|---|---|---|---|---|---|---|
| Ordinary Shares | 2026-09-30 | M exercised | +50,246 | 119,548 | I See footnotes | |
| Ordinary Shares | 2026-09-30 | S sold | -50,246 | $25.03 | 69,302 | I See footnotes |
| Ordinary Shares holding | 53,500 | D | ||||
| Option (right to buy) derivative | 2026-09-30 | M exercised | -50,246 | $0 | 344,983 | I See footnote |